Ratchet monkey-wrench



(No Model.) 2 Sheets-Sheet 1.

O. E. FREDERIOKSON. RATGHBT MONKEY WRENCH.

No. 605,444. Patented June 7,1898.

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CLAYTON E. FREDERICKSON, OF DENVER, COLORADO.

'RATCHET MONKEY-WRENCH.

SPECIFICATION forming part of Letters Patent No. 605,444, dated June '7, 1898. Application filed January 7, 1898. Serial No. 665,952. (NomodeLl T aZZ whom it may concern:

Be itknown thatI, CLAXTQNE. FREDERICK- sON, of Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Ratchet Monkey-WVrenches; and I hereby declare that the following is a f ulhclear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention is an improved nut-wrench having a rotatable head-stockprovided with adjustable sliding jaws; and it consists in the novel construction and combination of the parts in the wrench, as illustrated in the accompanying drawings and hereinafter described and claimed. v j

Referring to said drawings, Figural is a side view of the complete wrench, showing the jaws closed. Fig. 2 is a similar View showing the jaws opened. Fig. 3 is a bottom plan view with the lower head-retaining plate partly broken away. Fig. 4 is a longitudinal section on line a 4, Fig. 3. Fig. 5 is a transverse section on line 5 5, Fig. 3; and Figs. 6, 7, and 8 are details.

A designates the handle of the wrench, provided with a circular aperture a in one end, in which is fitted an annular shoulder 12 on the upper end of the rotatable head-stock]3,

. which carries the adjustable jaws. This headstock has an annular ratchet B just below shoulder b and below this ratchet an annular shoulder 19, which is encircled by a supplementary split plate 0, which is made fast to D in their sides adapted to engage the opposite ribs B in channel 13 whereby the jaws are guided and retained in the rotatable head-stock. The jaws D are also provided with central vertical slots D in which are jpivoted the lower ends of links E E, respectively, and the upper end of link E is bifurcated andembraces the upper end of link E, and the upper ends of-bothlinks are embraced by a bifurcated head F on the lower end of annular plate II, which is slipped over nut G and secured to the upper surface of the headstock in any suitable manner.

It will be obvious from the drawings that when nut G is turned in one direction bolt F will be lowered, and consequently the lower ends of links E E will spread apart and separate jaws D, and when nut G is turned in the opposite direction and bolt F and the links are raised the jaws will be drawn toward each other. Thus the jaws can be readily adjusted as desired.

The ratchet B may be engaged by either one of a pair of dogs I t', which are pivoted in recesses Co? on opposite sides of handle A and are forced into engagement with the ratchet B by means of a spring K, interposed between the rear ends of the dogs, said spring lying in a recess ct in the handle, as shown, and being completely inclosed. The dogs, of course, are not intended to operate simultaneously. Either dog may be held out of engagement with the ratchet B by means of catches J or j, respectively, these catches be ing formed on the ends of a spring-bar lying in recess a, as shown in Fig. 3, the rear ends of the dogs I and i being suitably notched to engage the catches, as shown. I

From the foregoing description it will be observed that Ihave a simple easily-adjusted wrench in which the head can be continuously rotated in one direction by vibrating the handle A and the head can be rotated right or left, as desired, byholding one or the other of the dogs I 2' out of engagement with the ratchet B by means of catch J or j.

Having thus described my invention, what I therefore claim as new, and desire to secure by Letters Patent thereon, is-

1. The combination of the rotatable headstock having a transverse channel, with the oppositely-rnoving sliding jaws sustained in.

and guided by said channel, the bolt movable axially of said head-stock above the jaws, and links connecting said bolt to said jaws, for the purpose and substantially as described.

2. The combination of the handle, the rotatable head-stock thereon having a transverse channel, with the oppositely-moving jaws guided in said channel, the bolt movable axially of said head-stock above the jaws, and links connecting said bolt to said jaws; with means for rotating said head-stock by vibrating the handle, all substantially as and for the purpose described.

3. The combination of the head having a transverse channel provided with opposite ribs inclining upwardly and inwardly from circumference to center; the sliding jaws having heads moving in said channel provided with grooves engaging the ribs therein, abolt above the jaws movable substantially at right angles thereto, and the links pivotally connected to the lower end of said bolt at their upper ends, and respectively connected at their lower ends to the opposite jaws, and means for adjusting said bolt, substantially as described.

4:. The combination of the handle, the rotatable head-stock journaled in the end thereof having a transverse groove provided with ribs on its sides, inclined upwardly from pcriphery to center, sliding jaws having heads provided with lateral grooves engaging the ribs in said channel, a bolt movable axially of the head-stock and connected to therespective jaws by means of pivoted links; a

nut for actuating said bolt, and means for v ri her to center slidin 'aws havin heads moving in said channel and provided with lateral grooves engaging the ribs therein; a bolt movable axially of the head-stock, links connecting said bolt to the respective jaws, a nut on said bolt and means for rotatably securing said nut to the head-stock; with opposite dogs adapted to engage the ratchet on the head-stock, the spring interposed between the ends of the dogs; and the connected catches adapted to hold either dog out of engagement with the ratchet, all for the purpose and substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

CLAYTON E. FREDERIOKSON.

Witnesses:

J. B. VROOM, HUGH lllCELIIENY. 

